Abstract: An open-front, belt-mounted holster for a weapon such as a pistol, revolver, or the like, the holster compartment having a raised barrier wall forming the base of the front opening to retard or prevent unauthorized or accidental withdrawal of a pistol disposed therein. A releasable safety strap is mounted across the top of the front opening, the strap having a snap buckle mounted on the belt attaching side panel of the holster. The safety strap includes a rigid lever rising above the holster for quick thumb release of the snap. A rear strap joins the compartment panels and in conjunction with the front safety strap act to more firmly hold the weapon in the compartment.